Reproduce:

• quickly press any two movement keys in rapid succession (W,A,S,D)
• OR be already walking forward (W) and quickly press any other key(s) twice while still having the 'W' key pressed

Result:

• sprinting will start even though not intended

Expected:

• sprinting only starts when the forward (W) key is pressed twice in quick succession.

Game version says 1.2.3 on Windows 10 install.